Ecotoxicologia metalelor grele in lunca Dunarii - CESEC
Ecotoxicologia metalelor grele in lunca Dunarii - CESEC
Ecotoxicologia metalelor grele in lunca Dunarii - CESEC
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184 Rezultate şi discuţii<br />
Tabelul 44 Distribuţia <strong>metalelor</strong> în specii de plante d<strong>in</strong> ecosistemele <strong>in</strong>vestigate în Insula Mică a<br />
Brăilei (valori medii în în 1996). Legendă: pe fond gri = valori mai mari decât niveluri de exces prezentate în anexa 0, pe fond<br />
negru = valori mai mici decât niveluri de deficienţă. AB = abundenţă relativă biomasică, Ec. = ecosistem, ND = nedeterm<strong>in</strong>at, *, ** = *exces şi<br />
**deficienţă pr<strong>in</strong> comparaţie cu niveluri specifice plantelor erbacee, V = Vegetaţie erbacee şi tufişuri pe ţărmuri, gr<strong>in</strong>duri şi în depresiouni, E =<br />
Macrofite emergente în mlaşt<strong>in</strong>i şi depreiuni <strong>in</strong>undate, M = Macrofite plutitoare şi submerse în mlaşt<strong>in</strong>i şi lacuri foarte puţ<strong>in</strong> adânci.<br />
Specie Ec. AB Fe Mn Zn Cu Cr Cd Pb Obs<br />
Aster tripolium L. (1753) G3 0.64 2603 181 73 2.2 1.2 ND 0.14 V<br />
Bidens tripartita L. (1753), B. cernua L. (1753) H1 9.94 2920 150 120 1.7 3.5 0.04 1.40 V<br />
H2 25.53 4000 150 180 2.7 1.1 0.06 2.80 V<br />
H3 0.78 4500 200 180 3.5 1.2 0.22 0.50 V<br />
I1 0.22 1285 120 76 2.7 2.3 ND 0.10 V<br />
I2 54.50 2703 186 121 1.6 1.5 ND 2.13 V<br />
I3 4.11 950 280 120 2.8 1.2 ND 1.25 V<br />
I4 66.57 1880 151 72 3.2 1.8 ND 1.63 V<br />
Cynodon dactylon (L.) Pers. (1805) G3 20.68 1125 125 37 4.4 4.3 ND 0.10 V<br />
Ech<strong>in</strong>ochloa crus-galli (L.) P.Beauv. (1812) H1 26.33 762 100 48 3.2 12.6 0.15 2.19 V<br />
I1 1.14 968 117 80 4.1 7.0 ND 0.07 V<br />
I3 24.15 532 290 38 3.5 2.7 ND 0.07 V<br />
Eleocharis palustris (L.) Roem. & Schult. (1817) G3 3.78 481 135 29 9.7 6.7 ND 0.07 V<br />
Elymus repens (L.) Gould (1947) G1 14.70 374 37 56 12.8 5.7 ND 0.42 V<br />
G2 40.86 2824 195 32 3.5 2.4 ND 0.35 V<br />
G3 52.12 3521 86 80 6.2 2.8 ND 1.40 V<br />
G4 21.00 1589 62 38 2.0 3.2 ND 1.20 V<br />
H2 21.76 2000 120 80 2.9 2.4 0.21 1.22 V<br />
I2 1.81 1279 180 85 2.4 1.7 ND 0.26 V<br />
Equisetum palustre L. (1753) G1 4.68 1015 217 72 2.4 1.3 ND 1.48 V<br />
I2 3.01 985 180 63 2.7 1.8 ND 0.25 V<br />
I3 1.04 1554 180 63 4.2 2.3 ND 0.25 V<br />
Juncus gerardi Loisel. (1809) G3 1.89 652 64 67 4.0 4.7 ND 0.10 V<br />
Lycopus europeus L. (1753) I4 5.41 154 130 90 3.5 2.5 ND 0.05 V<br />
Lythrum salicaria L. (1753) H3 4.77 863 180 48 4.4 3.3 0.16 0.75 V<br />
H4 0.45 524 123 94 2.1 5.0 0.98 0.12 V<br />
I2 5.85 549 150 52 5.8 3.1 ND 0.15 V<br />
Poa pratensis L. (1753) G4 2.17 236 68 65 6.3 2.6 ND 0.04 V<br />
Polygonum hydropiper L. (1753) I1 36.08 1524 170 60 16.4 1.6 ND 0.13 V<br />
I4 3.44 3000 140 72 6.6 2.0 ND 2.00 V<br />
Rorippa sylvestris (L.) Besser (1822) G1 2.01 1347 198 46 7.0 1.2 ND 0.02 V<br />
Rubus caesius L. (1753) H2 1.23 4500 100 40 9.1 3.2 0.06 5.01 V<br />
H3 6.90 2000 80 50 7.2 2.4 0.06 1.63 V<br />
I2 2.28 2642 150 56 5.8 1.2 ND 0.55 V<br />
I4 5.89 4700 120 68 8.8 2.5 ND 0.03 V<br />
Stachys palustris L. (1753) H2 0.24 894 111 50 5.2 5.0 0.35 0.10 V<br />
H3 34.17 4251 347 75 6.4 1.0 0.09 1.63 V<br />
Xanthium strumarium L. (1753) G1 52.83 250 40 48 2.6 1.5 ND 3.90 V<br />
G2 41.77 250 40 48 2.6 1.5 ND 3.90 V<br />
H1 25.30 215 50 70 5.2 2.2 0.11 2.61 V<br />
H2 45.82 157 26 43 14.0 2.0 0.07 0.46 V<br />
I1 43.07 153 110 44 3.2 1.7 ND 0.01 V<br />
I2 21.09 162 147 42 2.9 1.4 ND 0.30 V<br />
I3 61.19 375 223 49 4.2 1.9 ND 0.10 V<br />
Phragmites australis (Cav.) Tr<strong>in</strong>. Ex Steud. (1841) G4 65.25 *1913 *2924 23 5.1 3.56 ND 1.43 E<br />
Oenanthe aquatica (L.) Poir. (1798) H3 8.20 *1487 *900 45 5.2 *5.40 0.08 3.50 E<br />
H4 1.44 984 *782 49 **1.9 *10.30 1.98 0.08 E<br />
Scirpus lacustris L. (1753) H4 2.09 *1547 *580 65 6.1 1.98 1.37 0.01 E<br />
H5 18.79 958 *654 50 **2.6 *4.25 0.14 0.90 E<br />
Sparganium erectum L. (1753) H3 36.79 *1654 *1354 17 **4.2 1.24 0.05 5.20 E<br />
H4 37.14 *1000 *1900 40 **3.4 3.54 0.13 6.12 E<br />
H5 24.36 *2229 *652 18 **3.3 2.68 0.25 2.80 E<br />
Typha latifolia L. (1753) H4 17.12 874 *857 68 6.1 1.90 0.08 2.25 E<br />
H5 29.94 952 *1042 45 **3.4 3.80 0.13 1.50 E<br />
Ceratophyllum demersum L. (1753) H4 32.08 *1369 87 68 4.5 8.65 1.14 5.20 M<br />
H5 21.82 *1582 *102 73 6.0 7.52 0.12 6.34 M<br />
Ceratophyllum demersum L. (1753) H6 41.91 950 *125 80 5.2 6.89 1.17 2.10 M<br />
Nuphar lutea (L.) Sibth. & Sm. (1809) H6 30.19 *2165 *253 89 6.5 3.69 0.10 2.91 M<br />
Nymphaea alba L. (1753) H4 0.39 *1285 *164 *125 4.7 3.25 1.05 1.35 M<br />
H5 0.78 *1498 *298 *106 3.5 2.87 1.03 0.25 M<br />
Nymphoides peltata (S.G. Gmel<strong>in</strong>) O. Kuntze (1891) H4 0.27 967 *146 27 9.7 3.65 0.10 2.20 M<br />
H5 0.56 *1368 *167 89 5.8 2.15 0.13 0.09 M<br />
Potamogeton pect<strong>in</strong>atus L. (1753) H6 4.43 *1658 *117 75 12.5 2.35 1.12 4.50 M<br />
Salv<strong>in</strong>ia natans (L.) All. (1785) H4 9.90 *1547 90 48 11.3 18.40 0.12 4.30 M<br />
H5 3.48 *2158 *120 75 10.5 16.50 0.35 2.90 M<br />
Trapa natans L. (1753) float<strong>in</strong>g leaves H6 6.88 *2150 *210 *120 6.5 4.20 0.17 0.90 M